9503G0 aai.egi.eu https://goc.egi.eu/portal/index.php?Page_Type=Service&id=9503 N egi.aai.tts Y Y Y GRIDOPS-CheckIn Greece GR EGI.eu 6881 Master Portal OIDC provider configuration https://aai.egi.eu/mp-oa2-server/.well-known/configuration egi.aai.tts.mp.oidc.cfg Y 6882 Master Portal client registration page https://aai.egi.eu/mp-oa2-server/register egi.aai.tts.mp.register Y EGI